Reversing mechanism.



R. A. OGLE. I REVERSWG MECHANISM.

APPLICATION man FEB. a. 1913.

Patented Sept 12, 1916;

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it tarrtqyfih R. A. OGLE.

REVERSING MECHANISM.

' APPLlCATiON -FILED FEB. 3. 1913.

1 ,197,656 PatentedSe/pt. 12,1916.

5 sHEEIs-EHEET 2.

R. A. OGLIE.

REVERSING MECHANlSM.

APPLICATION FILED FEB. 3. 1913.

1 1 97,65 6 Patented-Sept. 12, 1916.

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R. A. OGLE.

REVERSING MECHANISM.

APPLICATION FILED H58. 3. 1913.

Patented Sept. 12,1916.

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R. A. OGLE.

REVERSING MECHANISM. APPLICATION FILE'D FEB. 3. 1913.

5 SHEETS-SHEET 5.

Patented Sept. 12, 1916.

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UNITED STATES PATENT OFFICE.

ROBERT A. OGLE, OF CHICAGO, ILLINOIS, ASSIGNOR TO OGLE CONSTRUCTION 00.,OF

. CHICAGO, ILLINOIS, A CORPORATION OFILLINOIS.

REVERSING MECHANISM.

Specification of Letters Patent.

Patented Sept. 12. 1916.

. Application filed February 3, 1913. Serial No. 745,786.

- nism, of which the following is a specification.

My invention relates to improvements in reversing mechanism and isillustrated dia grammatically in one form in the accompanying drawings,where1n Figure I is a plan view; Fig. 2, a side elevation partly insection; Fig. 3,'a section along the line 33 of Fig. 2 Fig. l a sectionalong the line H of Fig. 3; Fig. 5, a section along the line 55 of Fig.3; Fig. 6,

" a section along the line 6-6 of Fig. 3; Fig.

' shown.

7, a section along the line 77 of Fig. 5; Fig. 8, a detail sideelevation of the reversinglever or sector; Fig. 9, is a development ofthe cam shown in Fig. 5; Fig. 10, a section along the line 10-10 of Fig.3; Fig. 11, a detail section along the line 11-11 of Fig. 10; Fig. l2, adetail section along the line 2-12 OrFi 10.

Like parts are indicated by like letters throughout the several figures.

A A are the side frames of the hoist.

A is the drive shaft mountedin the bear ings A A in the frames A Arespectively and carrying the driving pulley A driven from any suitablesource of power not The sleeves A A are rotatably mounted on the shaft Aand carry rigidly mounted thereon the pinions A A and the clutch disks AA The sleeves A A are splined on the shaft A and free to slidetherealong and are provided respectively with the clutch disks A A inopposition to the clutch disks A A. The controlling sleeve A is splinedon the shaft A and has pivoted thereon the links A slotted at A and inslidable connection with the pins A in the arms A nthe sleeves A A.

with respect thereto.

The countershaft B is rotatably mounted in the bearings B on the sidefranies A A and carries at one end the gear B keyed thereon and in meshwith the pinion A and' atthe other endgthe pinion B keyed thereon. Thecountersha ft B is mounted in the bearings 13 on the frames A A beneaththe countershaft B and has at one end the pinion B in mesh with the gearB and at the other end the pinion B in mesh with the pinion A". The drumshaft B is rotatably mounted in the bearings B B on the frames A A andcarries the gear B in mesh with the pinion B One end of the shaft Bprojects out beyond the bearing B and carries the winch head 13. Thedrum B is rotatably mounted on the drum shaft B. The clutch disk B, ismounted on a hub 13, splined on the shaft B and is provided with thepins B engaging the holes B in the end of the drum. The curved jawmembers B are rotatably engaged in the slot B on the hub B and haveprojecting therefrom the pins B which are in slidable and rotatableengagement with the yoke 13 which is pivotally mounted at one end on thebracket B and is provided with the operating handle B whereby the clutchmay be moved in or out as the case may be.

The shaft C is rotatably mounted in the bearings G on the frames A A andbasictatably mounted thereon the sleeve C from which project the fingersC 0 Pins C projecting outwardly from the fingers C C carry rotatablymounted thereon the free ends of a brake band C which surrounds thebrake Wheel C which wheel in turn projects outwardly from the flange Con the end of the drum. The angles C on the free ends of the brake bandare joined by the bolts C and can be drawn together by means'of the.nuts C to adjust the tension in the brake band. The lever C projectsupwardly from one end of the sleeve C and is joined by means of the linkC with the brake (lever C pivoted on the shaft C The toothed segment Cis located at one side of the lever C and adaptedto be engaged by theratchet C controlled by the hand piece (J to lock the brake in theholding position at the will of the operator.

The shaft C is held against rotation in the brackets D,on' the sideframes A A and is screw-threaded as indicated at D; The sleeve D isrotatable on the shaft C being held against longitudinal movementtherealong and carries the sprocket D connected by means of the s rocketchain D with the sprocket I) on the shaft B". The sleeve D is splined onthesleeve D and free to Slide therealong and carries atone end the nut Din screw-threaded engagement with the screw D. The cylindrical cams D Dare held in position on the opposed ends of the sleeve 1) by theset-screws D The bell crank lever B is pivotally mounted on the crosspiece E joined to the frames A A and has at one end the ing head Eprojecting into the path of the cams D D and at the other end projectsout through the side f 'aine A terminating in a. cylindrical portion Ewhich passes through the slot E in the reversing lever E. which lever ispivotally mounted at its lower end on the f'ame A. The bell c 'ank leverE is pivotally mounted on an axis in line with the pivotal point of thehell crank lever l) a ad is slotted at one end as at E to engage the pinA on the clutclicontrolling sleeve A? and is provided at the other endwith the cylindrical portion E in engagement with the upper end of thelever E". The hell crank lever E has an extension projecting beyond thelever id" which carries a am contacting pin E and a cam. contactingroller E". The bolt E passes through the hell crank'E at a pointintermediate its pivotal point and the cylindrical part i and carriesthe washers E at either end thereof. The springs E are interposedbetween the washers E and washers E which rest against the members E andtend j 'ieldingly to hold the lever llx in the central position.

The shaft l is mounted in the hearings on the frame A carries the wormgear I mutilated at F in opposition to the worm l on the shaft A and isadapted to rotate as indicated by the arrow. The cylinder 1* is rigidlymounted on the shaft l and carries wound about its surface the cam shapeI? as developed in Fin. 9 and shown in side elevation in Fig. It will benoted that this cam shape is expanded at F and terminates in a point Fat one end and in a square shoulder l at the other. The shoulder F" isadapted to engage the part E on the hell crank lever F. 'lhegvtdghtedlever F is mounted on the shaft l in such position as to cause thatshaft to rotate when the part E is withdrawn from beneath the part F soas to bring the mutilated portion of the worm gear out of register withthe worm and permit the worm to actuate the worm gear.

Referring now to the manually operated feature of my invention indistinction to the automatic operation which has been previouslydescribed, the linlc G .is pirotally connected at one end to the lever Bwhere it passes through the lever li and at the other end to the leverG" which lever is rotatahly mounted on't'ne shaft 0 and by manipulatingthis lever the operator can substitute his control for the control etlected through the hell'cranlt lever E. in order to am contact-' torotate owing to the we" hold the drum or prevent it from running a waywhen the operator shitt. he direction oi movement of the sliatt C,rotatably mounted as above stated in the hearings C it is provided withthe lever (i keyed thereon and connected by means of the link G" to thelever G. being slotted at b to permit the pin (i in the lever G a.certain amount of free play. The dogs t l provided with the rights GG"are rotetably mounted on the shaft t." hutprovidcd with the enlarged heyways (W in which is loated the key *3 this key being}; located iii theshaft C so that when the s 'tt l. c is'rotated it first rotates a shortdistance, swing in the hey across through the e: way and then carriesthe dog with 'lhese dogs G G engage the teeth. G in the outer periperv ai of th rim tbalanced by the \\E1llii8 H at ca mallv drops mtoengasjcuzentwin tion and movement of the shaft.

ln order to hold the automatic tniierative mechanism out of operationaim to prevent the movement of the mutilated worm gear when that wouldhe 'mnlesirahle, not to say, disastrous. a pin (3 is provided whichpasses through the hearing; i! into engagement with the worm gear :1thus locking the gear in position with. the mutil ted part in oppositionto the wo against that rotation veighted lever would give it.

it will he evident that. w shown in urv drmriintrs an ope; still man;chr shape and air parting; mater vention. and, i: wish; therefore.drawings he regarded n a grannnatic.

The use and opera'i'ionof my invention is as tollows: ll ith the partsin the position shown in Fig. 2.5. for instance, power may he applied tothe driving: pulley and the driving}; shaft will be rotated but it willhe noted that. since the ch tches are h-oth in the disengaged position,the drum will not move. The operator to startthe nu'achino willInanipulate the hand lever pulhn it. in the present instance, towardhim. "i. ..i'- will i'lisengage the cam and permit the c it'll shaft theto which tend norniiall y it have ed lever. This will in worm gr; r intomesh 1 th is of course mounted on the driv constantly rotatin The rain Qh shzut then rotate carryiin; with it th 2 and the roller E" will heforced to one side "my the cam part F thus swinging the .J'Gll cranklever to throw th c h. t' into engagement with the cl This will causethe drum to through a urged key ltand holding the lib the pinion A thegear B and the pinion B in mesh with the gear B Assuming then that thedrive pulley is rotated in the direction shown by the arrow, the drumshaft will be rotated in a clockwise direction as looked at in Fig. 2and after the drum clutch is in engagement the drum will rotate with theshaft, thus drawing in one end of the cable and paying out the other.This rotation, however, of the drum shaft and drum will cause the sleeveD to be rotated and, since the sleeve D, which carries the nut D,rotates with it and since the screw D is fixed, the sleeve D will becaused to move laterally, bringing the cam D eventually into engagementwith the head E Meanwhile, however, assoon as the cam shaft has made acomplete revolution the springs E will have forced the lever Einto'central position and allowed the shoulder on the end of the cam torest against the part E thus holding the cam shaft against furtherrotation which can be done since by this time the mutilated part of theworm gear will have come into opposition to the worm. The contact -ofthe cam D against the head IE will throw the lever E to the left asviewed in Fig. 3 and permit the drum shaft again to come into operationcausing the roller E to come on the left side of the cam part F thusswinging the lever E to disengage the clutch members A A and engage theclutch members A A, thus reversing the direction of rotation of the drumand drum shaft which now is driven in a counterclockwise directionthrough the pinions A and B, pinion B", gear B the pinion B and the gearB". This will continue until the sleeve D has been fed back to theposition shown in Fig. 4 when the direction of movement will again bereversed. This cycle of operation, of course, continues indefinitely thedrum working in first one direction and then in the other as long as thepower is left on. It will be noted that the cams D 'D are adjustable onthe sleeve D so that they can be moved along it to any desired length offeed in either direction it being necessary only to give time enough forone complete revolution of the cam shaft between each stroke.

It will be noted that the reversing lever E is pivoted on the frame andthatthe function of the lever E is to start the reversing lever and moveit to one side sulficiently to permit the cam to start its action. Thiscam then forces the lever still further to one side and engages ordisengages the clutches as the case may be. i

Referring to Fig. 2 it will be noted that there is a link extending fromthe reversing.

lever to the manually controlled lever so that when the device isautomatically operated this manually controlled lever will be workedback and forth by the movement of the reversing lever just as if thehand of the operator were upon it, and the link (it connecting themanually operative lever and the shaft C will throw first the dog C andthen the dog G into or out of engagement with the drum to hold the drumagainst rotation at the instant that the two clutches are out ofengagement and while the drum is at rest and before the reversingmovement has' merely locking the worm gear so that it cannot turn andthus permitting the operator to control it entirely by means of the handlever or the pin may be pulled out, the worm gear allowed to rotate andthen the device becomes purely an automatic operating device draggingthe cable first one way and then another.

The winch head is of course of the usual form, being mounted on the drumshaft. The drum of course can be locked in position independent of thedrum shaft and the drum shaft allowed to rotate operating the winchwithout reference to the drum. This is by means of the clutcharrangement shown in Fig. 10 whose operation is so obvious that nofurther discussion of it is here needed.

The lever E is adapted to be rocked by the cam D or D. These cams eachof them have a throw of approximately one inch so that the niovement ofthe lever at the cam engaging end is'about one inch. This movement ofthe lever E is sufficient to disengage the clutch shifting cam, the endof the lever being permitted to move in the slot in the reversing lever.As soon as this movement of the lever E has taken place, the clutchcontrolling shaft drops down under the weight of the lever sufficientlyto bring the worm wheel into engagement with the worm gear on thedriving shaft and from that time on the clutch shifting shaft is posistively driven until the cam on that 's'haft has thrown the clutch leverin the appropriate direction, and this n'lovement of the lever E causedby the rocking of the reverse lever E* which in turn is caused by thepressure of the positively driven cam against the roller on the end ofthe lever E is sufficient to move the clutch controlling when a reversewill take place and vice It will be understood that there is a slidincconnection between the lever E and the lever E, so that. if need be, asthe machine operates, either one of these levers may operateindependently one with the other within certain limits.

I claim:

1. d. reversing mechanism comprising a driving shaft, clutches thereon,a driven member and connections, one for forward, the other for reversemovement between it and the clutches, means driven by the driving shaftfor operating the clutches and means driven by the driven member forthrowing the clutch operatingmeans into operation.

2. A reversing mechanism comprising a driving shaft, clutches thereon, adriven member and connections, one for forward, the other for reversemovement between it and the clutches, means driven by the driving shaftfor operating the clutches and means driven by thedriven member forthrowing the clutch operating means into operation, and means forautomatically disconnecting the clutch operating means from the drivingshaft after each operation of the clutch I A reversing mechanismcomprising a driving shaft, clutches thereon, a driven member andconnections, one for forward, the other for reverse movement between itand the clutches, means t riven by the driving shaft for operating theclutches and automatic means for disconnecting the clutch operatingmeans and the driving shaft when one of the clutches has been operated,and means driven by the driven member for connecting the clutchoperating means and the driving shaft.

4-. A reversing mechanism comprising a driving shaft, clutches thereon,a driven member and connections, one for forward and the other forreverse movement between it and the clutches, means driven by thedriving shaft for operating the clutches, and means for automaticallydisconnecting such driving means and holding them in the dis connectedposition at the end of complete operation of the clutch operating means,and means driven by the driven member for 5. A reversing mechanismcomprising a driving shaft, a driven member and clutch member andclutch. controlled connections between them, one for forward, the otherfor reverse movement, automatic means for manipulating said clutches,responsive in part to the movement of the driving member and in part tothe movement of the driven member for first disengaging one clutch, andthen engaging the other clutch.

6. A reversing mechanism comprising a driving shaft, clutches mountedthereon, a driven shaft, a connection between it and each such clutch,one for forward, the other for reverse movement, positive clutchoperating means conmrising a lever engaging the clutch at one end, camengaging the other end of the lever, a worm mounted on the drivingshaft, a mutilated worm wheel in mesh with said worm, a shaft connectingsaid wheel and the cam and means for antomatically l'iolding themutilated worm wheel with the mutilated part opposite the Worm.

7. A reversing mechanism comprising a driving shaft, clutches mountedthereon, a driven shaft, a connection between it and each such clutch,one for forward, the other for reverse movement, positive clutchoperating means comprising a lever-engaging the clutch at one end, acam. cnea in the otherto In 3 end of the lover, a worm mounted on thedriving shaft, a mutilated worm wheel in mesh with said worm, a shaftconnecting said wheel and the cam and means for automatically holdingthe mutilated worm wheel with the mutilated part opposite the worm,means responsive to the rotation of the driven shaft for disengagingsuch auto matic holding means, a weighted lever on the cam shaftadapted. to draw the worm wheel around in mesh with the worm, wherebythe cam is rotated to engage the clutch.

8. Aireversing mechanism comprising a driving shaft, clutches mountedthereon, a (haven shaft, and connections, one for forward the other forreverse drives between it and the clutches, a reversing lever, a clutchoperating lever having one end in engagement with it and connected atthe other end to both clutches, a"powcr driven clutch shifting mechanismcomprising a cam adjacent the reversing lever, a cam shaft and amutilated worm wheel on. the shaft, a worm on the drive shaft'in meshwith the worm wheel, and means for controlling the operation of such camto manipulate the clutches.

9. A reversing mechanism comprising a driving shaft, clutches mounted.thereon, a driven shaft, and connections, one for forclutch operatinglever having one endin en? gagement with it and connected at the otherend to both clutches, a power driven clutch shifting mechanismcomprising a cam adjacent the reversing lever, a cam shaft and amutilated worm wheel on the shaft, a worm on the drive shaft in meshwith the worm wheel, a timing lever having one end extending through thereversing lever into the path of the cam, the reversing lever beingslotted to permit some movement of the timing lever with respect to it,and means for operating the timing lever to cause the cam to be drivenby the worm.

10. A reversing mechanism comprising a driving shaft, clutches mountedthereon, a driven shaft, and connections, one for forward the other forreverse drives between it and the clutches, areversing lever, a clutchoperating lever having one end in engagement with it and connected atthe other end to both clutches, a power driven clutch shifting mechanismcomprising a cam adjacent the reversing lever, a cam shaft and amutilated ,worm wheel on the shaft, a worm on the drive shaft in meshwith the worm wheel, a timing lever having one end extending'through thereversing lever into the path of the cam, the reversing lever beingslotted to permit some movement of the timing lever with respect to it,a timing gear driven by the driven shaft adapted to release the cam andpermit its driving by the worm.

11. A reversing mechanism comprising a driving shaft, clutches mountedthereon, a

driven shaft, and connections, one for forward the other for reversedrives between it and the clutches, a reversing lever, a clutchoperating lever having one end in engagement with it and connected atthe other end to both clutches, a power driven clutch shifting mechanismcomprising a cam adjacent the reversing lever, a camshaft and a"mutilated worm wheel on the shaft, a worm on the drive shaft in meshwith the worm wheel, a'timing lever having one end ex- 7 tending throughthe reversing lever into the path of the cam, the reversing lever beingslotted to permit some movement of the timing lever with respect to it,and means for operating the timing lever to cause the cam to be drivenby the worm, the cam being discontinuous and having a squared endadapted to rest upon the end of the timing lever to hold the cam againstrotation.

.12. A reversing mechanism comprising a driving shaft, clutches mountedthereon, a driven shaft, and connections, one for forward the other forreverse drives between it and the clutches, a reversing lever, a clutchoperating lever having one end in engagement with it and connected atthe other end to both clutches, a power driven clutch shifting mechanismcomprising a cam adjacent the reversing lever, a cam shaft and amutilated worm wheel on the shaft, a worm on the drive shaft in meshwith the worm wheel, a timing lever having one end extending through thereversing lever into the path of the cam, the reversing lever beingslotted to permit some movement of the timing lever with respect to it,a timing gear driven by the driven shaft adapted to release the cam andpermit its driving by the Worm, the cam being discontinuous and having asquared end adapted to rest upon the end of the timing lever to hold thecam against rotation,

In testimony whereof, I aifix my signa ture in the presence of twowitnesses this 31st day of January, 1918.

ROBERT A. OGLE.

Witnesses:

GENEVA HERTH, LAUREL M. DOREMUS.

